in6_var.h revision 1.5
1/* $NetBSD: in6_var.h,v 1.5 1999/12/13 15:17:22 itojun Exp $ */ 2 3/* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32/* 33 * Copyright (c) 1985, 1986, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by the University of 47 * California, Berkeley and its contributors. 48 * 4. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)in_var.h 8.1 (Berkeley) 6/10/93 65 */ 66 67#ifndef _NETINET6_IN6_VAR_H_ 68#define _NETINET6_IN6_VAR_H_ 69 70/* 71 * Interface address, Internet version. One of these structures 72 * is allocated for each interface with an Internet address. 73 * The ifaddr structure contains the protocol-independent part 74 * of the structure and is assumed to be first. 75 */ 76 77/* 78 * pltime/vltime are just for future reference (required to implements 2 79 * hour rule for hosts). they should never be modified by nd6_timeout or 80 * anywhere else. 81 * userland -> kernel: accept pltime/vltime 82 * kernel -> userland: throuw up everything 83 * in kernel: modify preferred/expire only 84 */ 85struct in6_addrlifetime { 86 time_t ia6t_expire; /* valid lifetime expiration time */ 87 time_t ia6t_preferred; /* preferred lifetime expiration time */ 88 u_int32_t ia6t_vltime; /* valid lifetime */ 89 u_int32_t ia6t_pltime; /* prefix lifetime */ 90}; 91 92struct in6_ifaddr { 93 struct ifaddr ia_ifa; /* protocol-independent info */ 94#define ia_ifp ia_ifa.ifa_ifp 95#define ia_flags ia_ifa.ifa_flags 96 struct sockaddr_in6 ia_addr; /* interface address */ 97 struct sockaddr_in6 ia_net; /* network number of interface */ 98 struct sockaddr_in6 ia_dstaddr; /* space for destination addr */ 99 struct sockaddr_in6 ia_prefixmask; /* prefix mask */ 100 u_int32_t ia_plen; /* prefix length */ 101 struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */ 102#if !(defined(__FreeBSD__) && __FreeBSD__ >= 3) 103 LIST_HEAD(in6_multihead, in6_multi) ia6_multiaddrs; 104 /* list of multicast addresses */ 105#endif 106 int ia6_flags; 107 108 struct in6_addrlifetime ia6_lifetime; /* NULL = infty */ 109 struct ifprefix *ia6_ifpr; /* back pointer to ifprefix */ 110}; 111 112/* 113 * IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12). 114 */ 115struct in6_ifstat { 116 u_quad_t ifs6_in_receive; /* # of total input datagram */ 117 u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */ 118 u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */ 119 u_quad_t ifs6_in_noroute; /* # of datagrams with no route */ 120 u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */ 121 u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */ 122 /* NOTE: increment on final dst if */ 123 u_quad_t ifs6_in_truncated; /* # of truncated datagrams */ 124 u_quad_t ifs6_in_discard; /* # of discarded datagrams */ 125 /* NOTE: fragment timeout is not here */ 126 u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */ 127 /* NOTE: increment on final dst if */ 128 u_quad_t ifs6_out_forward; /* # of datagrams forwarded */ 129 /* NOTE: increment on outgoing if */ 130 u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */ 131 /* NOTE: does not include forwrads */ 132 u_quad_t ifs6_out_discard; /* # of discarded datagrams */ 133 u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */ 134 u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */ 135 u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */ 136 /* NOTE: this is # after fragment */ 137 u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */ 138 /* NOTE: increment on final dst if */ 139 u_quad_t ifs6_reass_ok; /* # of reassembled packets */ 140 /* NOTE: this is # after reass */ 141 /* NOTE: increment on final dst if */ 142 u_quad_t ifs6_reass_fail; /* # of reass failures */ 143 /* NOTE: may not be packet count */ 144 /* NOTE: increment on final dst if */ 145 u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */ 146 u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */ 147}; 148 149/* 150 * ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry. 151 * XXX: I'm not sure if this file is the right place for this structure... 152 */ 153struct icmp6_ifstat { 154 /* 155 * Input statistics 156 */ 157 /* ipv6IfIcmpInMsgs, total # of input messages */ 158 u_quad_t ifs6_in_msg; 159 /* ipv6IfIcmpInErrors, # of input error messages */ 160 u_quad_t ifs6_in_error; 161 /* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */ 162 u_quad_t ifs6_in_dstunreach; 163 /* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */ 164 u_quad_t ifs6_in_adminprohib; 165 /* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */ 166 u_quad_t ifs6_in_timeexceed; 167 /* ipv6IfIcmpInParmProblems, # of input parameter problem errors */ 168 u_quad_t ifs6_in_paramprob; 169 /* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */ 170 u_quad_t ifs6_in_pkttoobig; 171 /* ipv6IfIcmpInEchos, # of input echo requests */ 172 u_quad_t ifs6_in_echo; 173 /* ipv6IfIcmpInEchoReplies, # of input echo replies */ 174 u_quad_t ifs6_in_echoreply; 175 /* ipv6IfIcmpInRouterSolicits, # of input router solicitations */ 176 u_quad_t ifs6_in_routersolicit; 177 /* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */ 178 u_quad_t ifs6_in_routeradvert; 179 /* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */ 180 u_quad_t ifs6_in_neighborsolicit; 181 /* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */ 182 u_quad_t ifs6_in_neighboradvert; 183 /* ipv6IfIcmpInRedirects, # of input redirects */ 184 u_quad_t ifs6_in_redirect; 185 /* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */ 186 u_quad_t ifs6_in_mldquery; 187 /* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */ 188 u_quad_t ifs6_in_mldreport; 189 /* ipv6IfIcmpInGroupMembReductions, # of input MLD done */ 190 u_quad_t ifs6_in_mlddone; 191 192 /* 193 * Output statistics. We should solve unresolved routing problem... 194 */ 195 /* ipv6IfIcmpOutMsgs, total # of output messages */ 196 u_quad_t ifs6_out_msg; 197 /* ipv6IfIcmpOutErrors, # of output error messages */ 198 u_quad_t ifs6_out_error; 199 /* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */ 200 u_quad_t ifs6_out_dstunreach; 201 /* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */ 202 u_quad_t ifs6_out_adminprohib; 203 /* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */ 204 u_quad_t ifs6_out_timeexceed; 205 /* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */ 206 u_quad_t ifs6_out_paramprob; 207 /* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */ 208 u_quad_t ifs6_out_pkttoobig; 209 /* ipv6IfIcmpOutEchos, # of output echo requests */ 210 u_quad_t ifs6_out_echo; 211 /* ipv6IfIcmpOutEchoReplies, # of output echo replies */ 212 u_quad_t ifs6_out_echoreply; 213 /* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */ 214 u_quad_t ifs6_out_routersolicit; 215 /* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */ 216 u_quad_t ifs6_out_routeradvert; 217 /* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */ 218 u_quad_t ifs6_out_neighborsolicit; 219 /* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */ 220 u_quad_t ifs6_out_neighboradvert; 221 /* ipv6IfIcmpOutRedirects, # of output redirects */ 222 u_quad_t ifs6_out_redirect; 223 /* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */ 224 u_quad_t ifs6_out_mldquery; 225 /* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */ 226 u_quad_t ifs6_out_mldreport; 227 /* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */ 228 u_quad_t ifs6_out_mlddone; 229}; 230 231struct in6_ifreq { 232 char ifr_name[IFNAMSIZ]; 233 union { 234 struct sockaddr_in6 ifru_addr; 235 struct sockaddr_in6 ifru_dstaddr; 236 short ifru_flags; 237 int ifru_flags6; 238 int ifru_metric; 239 caddr_t ifru_data; 240 struct in6_addrlifetime ifru_lifetime; 241 struct in6_ifstat ifru_stat; 242 struct icmp6_ifstat ifru_icmp6stat; 243 } ifr_ifru; 244}; 245 246struct in6_aliasreq { 247 char ifra_name[IFNAMSIZ]; 248 struct sockaddr_in6 ifra_addr; 249 struct sockaddr_in6 ifra_dstaddr; 250 struct sockaddr_in6 ifra_prefixmask; 251 int ifra_flags; 252 struct in6_addrlifetime ifra_lifetime; 253}; 254 255/* prefix type macro */ 256#define IN6_PREFIX_ND 1 257#define IN6_PREFIX_RR 2 258 259/* 260 * prefix related flags passed between kernel(NDP related part) and 261 * user land command(ifconfig) and daemon(rtadvd). 262 */ 263struct in6_prflags { 264 struct prf_ra { 265 u_char onlink : 1; 266 u_char autonomous : 1; 267 u_char reserved : 6; 268 } prf_ra; 269 u_char prf_reserved1; 270 u_short prf_reserved2; 271 /* want to put this on 4byte offset */ 272 struct prf_rr { 273 u_char decrvalid : 1; 274 u_char decrprefd : 1; 275 u_char reserved : 6; 276 } prf_rr; 277 u_char prf_reserved3; 278 u_short prf_reserved4; 279}; 280 281struct in6_prefixreq { 282 char ipr_name[IFNAMSIZ]; 283 u_char ipr_origin; 284 u_char ipr_plen; 285 u_int32_t ipr_vltime; 286 u_int32_t ipr_pltime; 287 struct in6_prflags ipr_flags; 288 struct sockaddr_in6 ipr_prefix; 289}; 290 291#define PR_ORIG_RA 0 292#define PR_ORIG_RR 1 293#define PR_ORIG_STATIC 2 294#define PR_ORIG_KERNEL 3 295 296#define ipr_raf_onlink ipr_flags.prf_ra.onlink 297#define ipr_raf_auto ipr_flags.prf_ra.autonomous 298 299#define ipr_statef_onlink ipr_flags.prf_state.onlink 300 301#define ipr_rrf_decrvalid ipr_flags.prf_rr.decrvalid 302#define ipr_rrf_decrprefd ipr_flags.prf_rr.decrprefd 303 304struct in6_rrenumreq { 305 char irr_name[IFNAMSIZ]; 306 u_char irr_origin; 307 u_char irr_m_len; /* match len for matchprefix */ 308 u_char irr_m_minlen; /* minlen for matching prefix */ 309 u_char irr_m_maxlen; /* maxlen for matching prefix */ 310 u_char irr_u_uselen; /* uselen for adding prefix */ 311 u_char irr_u_keeplen; /* keeplen from matching prefix */ 312 struct irr_raflagmask { 313 u_char onlink : 1; 314 u_char autonomous : 1; 315 u_char reserved : 6; 316 } irr_raflagmask; 317 u_int32_t irr_vltime; 318 u_int32_t irr_pltime; 319 struct in6_prflags irr_flags; 320 struct sockaddr_in6 irr_matchprefix; 321 struct sockaddr_in6 irr_useprefix; 322}; 323 324#define irr_raf_mask_onlink irr_raflagmask.onlink 325#define irr_raf_mask_auto irr_raflagmask.autonomous 326#define irr_raf_mask_reserved irr_raflagmask.reserved 327 328#define irr_raf_onlink irr_flags.prf_ra.onlink 329#define irr_raf_auto irr_flags.prf_ra.autonomous 330 331#define irr_statef_onlink irr_flags.prf_state.onlink 332 333#define irr_rrf irr_flags.prf_rr 334#define irr_rrf_decrvalid irr_flags.prf_rr.decrvalid 335#define irr_rrf_decrprefd irr_flags.prf_rr.decrprefd 336 337/* 338 * Given a pointer to an in6_ifaddr (ifaddr), 339 * return a pointer to the addr as a sockaddr_in6 340 */ 341#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr)) 342#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr)) 343#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr)) 344#define IA6_SIN6(ia) (&((ia)->ia_addr)) 345#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr)) 346#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr) 347#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr) 348 349#define IFPR_IN6(x) (&((struct sockaddr_in6 *)((x)->ifpr_prefix))->sin6_addr) 350 351#ifdef _KERNEL 352#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \ 353 (((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \ 354 (((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \ 355 (((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \ 356 (((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 ) 357#endif 358 359#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq) 360#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq) 361#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq) 362#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq) 363#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq) 364#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq) 365 366#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq) 367#define SIOCAIFADDR_IN6 _IOW('i', 26, struct in6_aliasreq) 368 369#define SIOCSIFPHYADDR_IN6 _IOW('i', 70, struct in6_aliasreq) 370#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq) 371#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq) 372 373#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq) 374 375#define SIOCGDRLST_IN6 _IOWR('i', 74, struct in6_drlist) 376#define SIOCGPRLST_IN6 _IOWR('i', 75, struct in6_prlist) 377#define SIOCGIFINFO_IN6 _IOWR('i', 76, struct in6_ndireq) 378#define SIOCSNDFLUSH_IN6 _IOWR('i', 77, struct in6_ifreq) 379#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo) 380#define SIOCSPFXFLUSH_IN6 _IOWR('i', 79, struct in6_ifreq) 381#define SIOCSRTRFLUSH_IN6 _IOWR('i', 80, struct in6_ifreq) 382 383#define SIOCGIFALIFETIME_IN6 _IOWR('i', 81, struct in6_ifreq) 384#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq) 385#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq) 386#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq) 387 388#define SIOCSDEFIFACE_IN6 _IOWR('i', 85, struct in6_ndifreq) 389#define SIOCGDEFIFACE_IN6 _IOWR('i', 86, struct in6_ndifreq) 390 391#define SIOCSIFPREFIX_IN6 _IOW('i', 100, struct in6_prefixreq) /* set */ 392#define SIOCGIFPREFIX_IN6 _IOWR('i', 101, struct in6_prefixreq) /* get */ 393#define SIOCDIFPREFIX_IN6 _IOW('i', 102, struct in6_prefixreq) /* del */ 394#define SIOCAIFPREFIX_IN6 _IOW('i', 103, struct in6_rrenumreq) /* add */ 395#define SIOCCIFPREFIX_IN6 _IOW('i', 104, \ 396 struct in6_rrenumreq) /* change */ 397#define SIOCSGIFPREFIX_IN6 _IOW('i', 105, \ 398 struct in6_rrenumreq) /* set global */ 399 400#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \ 401 struct sioc_sg_req6) /* get s,g pkt cnt */ 402#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \ 403 struct sioc_mif_req6) /* get pkt cnt per if */ 404 405#define IN6_IFF_ANYCAST 0x01 /* anycast address */ 406#define IN6_IFF_TENTATIVE 0x02 /* tentative address */ 407#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */ 408#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */ 409#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */ 410 411/* do not input/output */ 412#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED) 413 414#ifdef _KERNEL 415extern struct in6_ifaddr *in6_ifaddr; 416 417extern struct in6_ifstat **in6_ifstat; 418extern size_t in6_ifstatmax; 419extern struct icmp6stat icmp6stat; 420extern struct icmp6_ifstat **icmp6_ifstat; 421extern size_t icmp6_ifstatmax; 422#define in6_ifstat_inc(ifp, tag) \ 423do { \ 424 if ((ifp) && (ifp)->if_index <= if_index \ 425 && (ifp)->if_index < in6_ifstatmax \ 426 && in6_ifstat && in6_ifstat[(ifp)->if_index]) { \ 427 in6_ifstat[(ifp)->if_index]->tag++; \ 428 } \ 429} while (0) 430 431extern struct ifqueue ip6intrq; /* IP6 packet input queue */ 432extern struct in6_addr zeroin6_addr; 433extern u_char inet6ctlerrmap[]; 434extern unsigned long in6_maxmtu; 435#if defined(__FreeBSD__) && __FreeBSD__ >= 3 436#ifdef MALLOC_DECLARE 437MALLOC_DECLARE(M_IPMADDR); 438#endif /* MALLOC_DECLARE */ 439#endif 440 441/* 442 * Macro for finding the internet address structure (in6_ifaddr) corresponding 443 * to a given interface (ifnet structure). 444 */ 445#if defined(__bsdi__) || (defined(__FreeBSD__) && __FreeBSD__ < 3) 446 447#define IFP_TO_IA6(ifp, ia) \ 448/* struct ifnet *ifp; */ \ 449/* struct in6_ifaddr *ia; */ \ 450do { \ 451 struct ifaddr *ifa; \ 452 for (ifa = (ifp)->if_addrlist; ifa; ifa = ifa->ifa_next) { \ 453 if (!ifa->ifa_addr) \ 454 continue; \ 455 if (ifa->ifa_addr->sa_family == AF_INET6) \ 456 break; \ 457 } \ 458 (ia) = (struct in6_ifaddr *)ifa; \ 459} while (0) 460 461#else 462 463#define IFP_TO_IA6(ifp, ia) \ 464/* struct ifnet *ifp; */ \ 465/* struct in6_ifaddr *ia; */ \ 466do { \ 467 struct ifaddr *ifa; \ 468 for (ifa = (ifp)->if_addrlist.tqh_first; ifa; ifa = ifa->ifa_list.tqe_next) { \ 469 if (!ifa->ifa_addr) \ 470 continue; \ 471 if (ifa->ifa_addr->sa_family == AF_INET6) \ 472 break; \ 473 } \ 474 (ia) = (struct in6_ifaddr *)ifa; \ 475} while (0) 476#endif /* _KERNEL */ 477 478#endif 479 480/* 481 * Multi-cast membership entry. One for each group/ifp that a PCB 482 * belongs to. 483 */ 484struct in6_multi_mship { 485 struct in6_multi *i6mm_maddr; /* Multicast address pointer */ 486 LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */ 487}; 488 489struct in6_multi { 490 LIST_ENTRY(in6_multi) in6m_entry; /* list glue */ 491 struct in6_addr in6m_addr; /* IP6 multicast address */ 492 struct ifnet *in6m_ifp; /* back pointer to ifnet */ 493#if !(defined(__FreeBSD__) && __FreeBSD__ >= 3) 494 struct in6_ifaddr *in6m_ia; /* back pointer to in6_ifaddr */ 495#else 496 struct ifmultiaddr *in6m_ifma; /* back pointer to ifmultiaddr */ 497#endif 498 u_int in6m_refcount; /* # membership claims by sockets */ 499 u_int in6m_state; /* state of the membership */ 500 u_int in6m_timer; /* MLD6 listener report timer */ 501}; 502 503#ifdef _KERNEL 504#if defined(__FreeBSD__) && __FreeBSD__ >= 3 505extern LIST_HEAD(in6_multihead, in6_multi) in6_multihead; 506#endif 507 508/* 509 * Structure used by macros below to remember position when stepping through 510 * all of eht in6_multi records. 511 */ 512struct in6_multistep { 513 struct in6_ifaddr *i_ia; 514 struct in6_multi *i_in6m; 515}; 516 517/* 518 * Macros for looking up the in6_multi record for a given IP6 multicast 519 * address on a given interface. If no matching record is found, "in6m" 520 * returns NLL. 521 */ 522 523#if defined(__FreeBSD__) && __FreeBSD__ >= 3 524 525#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 526/* struct in6_addr addr; */ \ 527/* struct ifnet *ifp; */ \ 528/* struct in6_multi *in6m; */ \ 529do { \ 530 register struct ifmultiaddr *ifma; \ 531 for (ifma = (ifp)->if_multiaddrs.lh_first; ifma; \ 532 ifma = ifma->ifma_link.le_next) { \ 533 if (ifma->ifma_addr->sa_family == AF_INET6 \ 534 && IN6_ARE_ADDR_EQUAL(&((struct sockaddr_in6 *)ifma->ifma_addr)->sin6_addr, \ 535 &(addr))) \ 536 break; \ 537 } \ 538 (in6m) = (struct in6_multi *)(ifma ? ifma->ifma_protospec : 0); \ 539} while(0) 540 541/* 542 * Macro to step through all of the in6_multi records, one at a time. 543 * The current position is remembered in "step", which the caller must 544 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 545 * and get the first record. Both macros return a NULL "in6m" when there 546 * are no remaining records. 547 */ 548#define IN6_NEXT_MULTI(step, in6m) \ 549/* struct in6_multistep step; */ \ 550/* struct in6_multi *in6m; */ \ 551do { \ 552 if (((in6m) = (step).i_in6m) != NULL) \ 553 (step).i_in6m = (step).i_in6m->in6m_entry.le_next; \ 554} while(0) 555 556#define IN6_FIRST_MULTI(step, in6m) \ 557/* struct in6_multistep step; */ \ 558/* struct in6_multi *in6m */ \ 559do { \ 560 (step).i_in6m = in6_multihead.lh_first; \ 561 IN6_NEXT_MULTI((step), (in6m)); \ 562} while(0) 563 564#else /* not FreeBSD3 */ 565 566#define IN6_LOOKUP_MULTI(addr, ifp, in6m) \ 567/* struct in6_addr addr; */ \ 568/* struct ifnet *ifp; */ \ 569/* struct in6_multi *in6m; */ \ 570do { \ 571 register struct in6_ifaddr *ia; \ 572 \ 573 IFP_TO_IA6((ifp), ia); \ 574 if (ia == NULL) \ 575 (in6m) = NULL; \ 576 else \ 577 for ((in6m) = ia->ia6_multiaddrs.lh_first; \ 578 (in6m) != NULL && \ 579 !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, &(addr)); \ 580 (in6m) = in6m->in6m_entry.le_next) \ 581 continue; \ 582} while (0) 583 584/* 585 * Macro to step through all of the in6_multi records, one at a time. 586 * The current position is remembered in "step", which the caller must 587 * provide. IN6_FIRST_MULTI(), below, must be called to initialize "step" 588 * and get the first record. Both macros return a NULL "in6m" when there 589 * are no remaining records. 590 */ 591#define IN6_NEXT_MULTI(step, in6m) \ 592/* struct in6_multistep step; */ \ 593/* struct in6_multi *in6m; */ \ 594do { \ 595 if (((in6m) = (step).i_in6m) != NULL) \ 596 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 597 else \ 598 while ((step).i_ia != NULL) { \ 599 (in6m) = (step).i_ia->ia6_multiaddrs.lh_first; \ 600 (step).i_ia = (step).i_ia->ia_next; \ 601 if ((in6m) != NULL) { \ 602 (step).i_in6m = (in6m)->in6m_entry.le_next; \ 603 break; \ 604 } \ 605 } \ 606} while (0) 607 608#define IN6_FIRST_MULTI(step, in6m) \ 609/* struct in6_multistep step; */ \ 610/* struct in6_multi *in6m */ \ 611do { \ 612 (step).i_ia = in6_ifaddr; \ 613 (step).i_in6m = NULL; \ 614 IN6_NEXT_MULTI((step), (in6m)); \ 615} while (0) 616 617#endif /* not FreeBSD3 */ 618 619int in6_ifinit __P((struct ifnet *, 620 struct in6_ifaddr *, struct sockaddr_in6 *, int)); 621struct in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *, 622 int *)); 623void in6_delmulti __P((struct in6_multi *)); 624void in6_ifscrub __P((struct ifnet *, struct in6_ifaddr *)); 625extern int in6_ifindex2scopeid __P((int)); 626extern int in6_mask2len __P((struct in6_addr *)); 627extern void in6_len2mask __P((struct in6_addr *, int)); 628#if !defined(__bsdi__) && !(defined(__FreeBSD__) && __FreeBSD__ < 3) 629int in6_control __P((struct socket *, 630 u_long, caddr_t, struct ifnet *, struct proc *)); 631#else 632int in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *)); 633#endif 634void in6_savemkludge __P((struct in6_ifaddr *)); 635void in6_setmaxmtu __P((void)); 636void in6_restoremkludge __P((struct in6_ifaddr *, struct ifnet *)); 637struct in6_ifaddr *in6ifa_ifpforlinklocal __P((struct ifnet *)); 638struct in6_ifaddr *in6ifa_ifpwithaddr __P((struct ifnet *, 639 struct in6_addr *)); 640char *ip6_sprintf __P((struct in6_addr *)); 641int in6_matchlen __P((struct in6_addr *, struct in6_addr *)); 642int in6_are_prefix_equal __P((struct in6_addr *p1, struct in6_addr *p2, 643 int len)); 644void in6_prefixlen2mask __P((struct in6_addr *maskp, int len)); 645int in6_prefix_ioctl __P((struct socket *so, u_long cmd, caddr_t data, 646 struct ifnet *ifp)); 647int in6_prefix_add_ifid __P((int iilen, struct in6_ifaddr *ia)); 648void in6_prefix_remove_ifid __P((int iilen, struct in6_ifaddr *ia)); 649#endif /* _KERNEL */ 650 651#endif /* _NETINET6_IN6_VAR_H_ */ 652